Question

2/5 x + 3x-2 =x +10 alguem pode me ajudar ?

Answer 1

Oie, Td Bom?!

$\frac{2}{5} x + 3x - 2 = x + 10$

$5( \frac{2}{5} x + 3x - 2) = 5(x + 10)$

$5 \: . \: \frac{2}{5} x + 5 \: . \: 3x - 5 \: . \: 2 = 5x + 5 \: . \: 10$

$2x + 15x - 10 = 5x + 50$

$17x - 10 = 5x + 50$

$17x - 5x = 50 + 10$

$12x = 60$

$x = \frac{60}{12}$

$x = 5$

Att. Makaveli1996